Added nested class enums generation in CLI backend.
Added nested class enums generation in CLI backend.

SonyaSa/CppSharp,txdv/CppSharp,ddobrev/CppSharp,xistoso/CppSharp,zillemarco/CppSharp,u255436/CppSharp,txdv/CppSharp,ktopouzi/CppSharp,mydogisbox/CppSharp,mohtamohit/CppSharp,xistoso/CppSharp,imazen/CppSharp,mono/CppSharp,inordertotest/CppSharp,genuinelucifer/CppSharp,genuinelucifer/CppSharp,ddobrev/CppSharp,inordertotest/CppSharp,nalkaro/CppSharp,ktopouzi/CppSharp,inordertotest/CppSharp,zillemarco/CppSharp,xistoso/CppSharp,mohtamohit/CppSharp,imazen/CppSharp,ktopouzi/CppSharp,ddobrev/CppSharp,u255436/CppSharp,mono/CppSharp,ddobrev/CppSharp,txdv/CppSharp,mohtamohit/CppSharp,imazen/CppSharp,mono/CppSharp,nalkaro/CppSharp,SonyaSa/CppSharp,imazen/CppSharp,Samana/CppSharp,xistoso/CppSharp,ktopouzi/CppSharp,inordertotest/CppSharp,KonajuGames/CppSharp,u255436/CppSharp,mydogisbox/CppSharp,ktopouzi/CppSharp,zillemarco/CppSharp,ddobrev/CppSharp,txdv/CppSharp,nalkaro/CppSharp,inordertotest/CppSharp,imazen/CppSharp,SonyaSa/CppSharp,txdv/CppSharp,genuinelucifer/CppSharp,mono/CppSharp,genuinelucifer/CppSharp,u255436/CppSharp,Samana/CppSharp,u255436/CppSharp,SonyaSa/CppSharp,mydogisbox/CppSharp,Samana/CppSharp,mohtamohit/CppSharp,mono/CppSharp,mydogisbox/CppSharp,mydogisbox/CppSharp,mohtamohit/CppSharp,KonajuGames/CppSharp,SonyaSa/CppSharp,KonajuGames/CppSharp,KonajuGames/CppSharp,nalkaro/CppSharp,mono/CppSharp,Samana/CppSharp,Samana/CppSharp,genuinelucifer/CppSharp,zillemarco/CppSharp,nalkaro/CppSharp,KonajuGames/CppSharp,zillemarco/CppSharp,xistoso/CppSharp